Properties |
Appearance | White flakes and powder or melt Yellowish or pinkish hue admitted. |
Mass fraction of phthalic anhydride, , no less | 99.9 |
Temperature of crystallization, oC, no less | 130.9 |
Mass fraction of iron, %, no more | 0.0002 |
Content of phthalic acid | Absent |
Mass fraction of malelic anhydride, %, no more | 0.05 |
Mass fraction of ash, %, no more | 0.002 |
Chromaticity of molten product, hasen units, no more: |
In output during guarantee period for powder | 15 |
During guarantee period for melt | Not normalized |
Chromaticity of molten product after heating at 250oC for 90 min. hasen units, no more: |
In output during guarantee period for powder | 40 |
Flakes | 60 |
during guarantee period for melt | Not normalized |
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